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quick and dirty afl in screen #1

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52 changes: 52 additions & 0 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,58 @@ TEST_ENV="UBSAN_OPTIONS=print_stacktrace=1:halt_on_error=1"

all:

.PHONY: harness harness-afl harness-laf harness-cmplog harness-sand fuzz fuzz-stop

harness: harness-afl harness-laf harness-cmplog harness-sand

harness-afl: harness.c picohttpparser.c
afl-clang-lto -fsanitize=fuzzer -I. harness.c picohttpparser.c -o harness.afl

harness-laf: harness.c picohttpparser.c
AFL_LLVM_LAF_ALL=1 afl-clang-lto -fsanitize=fuzzer -I. harness.c picohttpparser.c -o harness.laf

harness-cmplog: harness.c picohttpparser.c
AFL_LLVM_CMPLOG=1 afl-clang-lto -fsanitize=fuzzer -I. harness.c picohttpparser.c -o harness.cmplog

harness-sand: harness.c picohttpparser.c
AFL_USE_ASAN=1 AFL_USE_UBSAN=1 AFL_LLVM_ONLY_FSRV=1 afl-clang-lto -fsanitize=fuzzer -I. harness.c picohttpparser.c -o harness.asanubsan
AFL_USE_MSAN=1 AFL_LLVM_ONLY_FSRV=1 afl-clang-lto -fsanitize=fuzzer -I. harness.c picohttpparser.c -o harness.msan
AFL_USE_CFISAN=1 AFL_LLVM_ONLY_FSRV=1 afl-clang-lto -fsanitize=fuzzer -I. harness.c picohttpparser.c -o harness.cfisan
AFL_USE_TSAN=1 AFL_LLVM_ONLY_FSRV=1 afl-clang-lto -fsanitize=fuzzer -I. harness.c picohttpparser.c -o harness.tsan

fuzz: harness
screen -dmS afl-main bash -c 'export AFL_FINAL_SYNC=1; afl-fuzz -M main -i in -o out ./harness.afl'
screen -dmS afl-sand-01 bash -c 'afl-fuzz -S sand-01 -i in -o out -w ./harness.asanubsan -w ./harness.msan -w ./harness.cfisan -w ./harness.tsan ./harness.afl'
screen -dmS afl-cmplog-01 bash -c 'afl-fuzz -S cmplog-01 -i in -o out -c ./harness.cmplog ./harness.afl'
screen -dmS afl-cmplog-02 bash -c 'afl-fuzz -S cmplog-02 -i in -o out -c ./harness.cmplog ./harness.afl'
screen -dmS afl-laf-01 bash -c 'afl-fuzz -S laf-01 -i in -o out ./harness.laf'
screen -dmS afl-laf-02 bash -c 'afl-fuzz -S laf-02 -i in -o out ./harness.laf'
screen -dmS afl-laf-03 bash -c 'afl-fuzz -S laf-03 -i in -o out ./harness.laf'
screen -dmS afl-mopt-01 bash -c 'afl-fuzz -S mopt-01 -i in -o out -L 0 ./harness.afl'
screen -dmS afl-old-queue-cycling-01 bash -c 'afl-fuzz -S old-queue-cycling-01 -i in -o out -Z ./harness.afl'
screen -dmS afl-disable-trim-01 bash -c 'export AFL_DISABLE_TRIM=1; afl-fuzz -S disable-trim-01 -i in -o out ./harness.afl'
screen -dmS afl-explore-01 bash -c 'afl-fuzz -S explore-01 -i in -o out -p explore ./harness.afl'
screen -dmS afl-exploit-01 bash -c 'afl-fuzz -S exploit-01 -i in -o out -p exploit ./harness.afl'
screen -dmS afl-ascii-01 bash -c 'afl-fuzz -S ascii-01 -i in -o out -a ascii ./harness.afl'
screen -dmS afl-binary-01 bash -c 'afl-fuzz -S binary-01 -i in -o out -a binary ./harness.afl'

fuzz-stop:
screen -S afl-main -X quit
screen -S afl-sand-01 -X quit
screen -S afl-cmplog-01 -X quit
screen -S afl-cmplog-02 -X quit
screen -S afl-laf-01 -X quit
screen -S afl-laf-02 -X quit
screen -S afl-laf-03 -X quit
screen -S afl-mopt-01 -X quit
screen -S afl-old-queue-cycling-01 -X quit
screen -S afl-disable-trim-01 -X quit
screen -S afl-explore-01 -X quit
screen -S afl-exploit-01 -X quit
screen -S afl-ascii-01 -X quit
screen -S afl-binary-01 -X quit


test: test-bin
env $(TEST_ENV) $(PROVE) -v ./test-bin

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15 changes: 15 additions & 0 deletions harness.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
#include <stdint.h>
#include <stdlib.h>
#include "picohttpparser.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
const char *method, *path;
int minor_version;
struct phr_header headers[100];
size_t method_len, path_len, num_headers = 100;

phr_parse_request((const char *)data, size, &method, &method_len, &path, &path_len,
&minor_version, headers, &num_headers, 0);

return 0;
}